Cherry 1.0 Pro

Overview

Cherry 1.0 Pro creates videos from a text prompt, from first and last keyframes, or from up to 10 reference images. Set the duration (2–30 s), resolution, and aspect ratio; audio is generated by default. Pricing is per second of output video by resolution.

Data policy

• Generated files are kept for 7 days and then deleted.
• Prompts are not stored. Only request metadata is kept.
• Your request is forwarded to an upstream provider that runs the model.

See the measured success rate and generation time of this model

API

Call this model with its ID, sakuranbo/cherry-1.0-pro.

Estimate the price

POST /v1/estimate takes a JSON body ({ model, input }) and returns the price for that input before you run it. This endpoint does not need an API key.

curl -X POST "https://api.sakuranbo.ai/v1/estimate" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "sakuranbo/cherry-1.0-pro",
  "input": {
    "prompt": "Aerial shot gliding over a misty mountain lake at sunrise, gentle wind and birdsong",
    "duration": 5,
    "resolution": "1080p",
    "aspect_ratio": "16:9"
  }
}'

const response = await fetch("https://api.sakuranbo.ai/v1/estimate", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "sakuranbo/cherry-1.0-pro",
    "input": {
      "prompt": "Aerial shot gliding over a misty mountain lake at sunrise, gentle wind and birdsong",
      "duration": 5,
      "resolution": "1080p",
      "aspect_ratio": "16:9"
    }
  }),
});
const data = await response.json();
console.log(data);

import requests

response = requests.post(
    "https://api.sakuranbo.ai/v1/estimate",
    json={
        "model": "sakuranbo/cherry-1.0-pro",
        "input": {
            "prompt": "Aerial shot gliding over a misty mountain lake at sunrise, gentle wind and birdsong",
            "duration": 5,
            "resolution": "1080p",
            "aspect_ratio": "16:9",
        },
    },
)
print(response.json())

Generate

Send generation requests to /v1/videos. The request below uses an example input from the catalog for this model.

Listing and fetching models and estimating prices need no API key. Generation requests need an API key: Authorization: Bearer YOUR_API_KEY

curl -X POST "https://api.sakuranbo.ai/v1/videos" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $SAKURANBO_API_KEY" \
  -d '{
  "model": "sakuranbo/cherry-1.0-pro",
  "prompt": "Aerial shot gliding over a misty mountain lake at sunrise, gentle wind and birdsong",
  "duration": 5,
  "resolution": "1080p",
  "aspect_ratio": "16:9"
}'

const response = await fetch("https://api.sakuranbo.ai/v1/videos", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    Authorization: `Bearer ${process.env.SAKURANBO_API_KEY}`,
  },
  body: JSON.stringify({
    "model": "sakuranbo/cherry-1.0-pro",
    "prompt": "Aerial shot gliding over a misty mountain lake at sunrise, gentle wind and birdsong",
    "duration": 5,
    "resolution": "1080p",
    "aspect_ratio": "16:9"
  }),
});
const data = await response.json();
console.log(data);

import os

import requests

response = requests.post(
    "https://api.sakuranbo.ai/v1/videos",
    headers={
        "Authorization": f"Bearer {os.environ['SAKURANBO_API_KEY']}",
    },
    json={
        "model": "sakuranbo/cherry-1.0-pro",
        "prompt": "Aerial shot gliding over a misty mountain lake at sunrise, gentle wind and birdsong",
        "duration": 5,
        "resolution": "1080p",
        "aspect_ratio": "16:9",
    },
)
print(response.json())

Read the Videos guide

Parameters

Request fields for this model.

Pricing

Prices are in USD and include our margin. Failed, cancelled, expired, and policy-rejected runs are not billed. For chat, once the model has started generating output (including reasoning output), the output it generates is billed, even if the stream breaks or you close the connection.

Price examples

Examples use the listed prices. The server calculates the final charge from actual usage.

Default run: $1.125 (5 s, 1080p)

Pricing

Schema

JSON Schema of the input fields, generated from the catalog.

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "prompt": {
      "type": "string",
      "maxLength": 20000,
      "description": "Description of the scene, motion, and audio."
    },
    "first_frame": {
      "type": "string",
      "format": "uri",
      "description": "Image to use as the first frame (image-to-video)."
    },
    "last_frame": {
      "type": "string",
      "format": "uri",
      "description": "Image to use as the last frame. Requires first_frame."
    },
    "reference_images": {
      "type": "array",
      "items": {
        "type": "string",
        "format": "uri"
      },
      "maxItems": 10,
      "description": "Up to 10 reference images. Cannot be combined with keyframes."
    },
    "duration": {
      "type": "integer",
      "minimum": 2,
      "maximum": 30,
      "default": 5,
      "description": "Video length in seconds. Billed per second."
    },
    "resolution": {
      "type": "string",
      "enum": [
        "1080p",
        "2k",
        "4k"
      ],
      "default": "1080p",
      "description": "Output resolution. Determines the per-second price."
    },
    "aspect_ratio": {
      "type": "string",
      "enum": [
        "adaptive",
        "16:9",
        "9:16",
        "1:1",
        "4:3",
        "3:4"
      ],
      "default": "adaptive",
      "description": "Aspect ratio of the output video."
    },
    "audio": {
      "type": "boolean",
      "default": true,
      "description": "Generate an audio track. The price is the same with or without audio."
    }
  },
  "required": [
    "prompt"
  ]
}

Related models

• CherryImage 1.0 Pro

  Sakuranbo AI · Image

  High-fidelity text-to-image and reference-based image editing up to 2K resolution.

  • Text to image
  • Image editing

  • 1K / 1.5K / 2K
  • 9 aspect ratios

  From $0.045 per image

  Default run: $0.09 (1 image, 2K)

• CherryText 1.0 Flash

  Sakuranbo AI · Text

  Fast, low-cost language model with a 1M-token context window, tool calls, and reasoning.

  • Chat

  • 1M context
  • 131K max output

  $0.4125 per 1M input tokens

  $1.65 per 1M output tokens

  Default run: $0.00676 (empty input, up to 4,096 output tokens)